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Reviews Categories | Amplifiers: RF Power - 6M/VHF/UHF+ | BJ-150V Radio Amplifier Help

Reviews Summary for BJ-150V Radio Amplifier
BJ-150V Radio Amplifier Reviews: 2 Average rating: 3.0/5 MSRP: $136
Description: BJ-150V Radio Amplifier Booster
100W VHF 136-174MHz RF Linear Amplifier.
Input energy/power: 8-11 A Input power: 1-5 W FM
Input power: 5-16W SSB Output power:50W FM
Output power:100W SSB Output power level: 1
Size :129x125x35 mm
Product is in production.
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VK4ADA Rating: 2/5 Nov 14, 2013 13:47 Send this review to a friend
BJ-150V WARNING  Time owned: 0 to 3 months
This BJ-150V amplifier is being sold in large quantities as an amplifier for hand held 2m rigs etc.The case is generic - being used for a hf amp as well as others hence the ssb/am switch.A lot of the advertising tells you that it is ssb/fm and even gives you the input and output power figures of up to 100 watts ssb.PLEASE NOTE THIS IS NOT A LINEAR AMPLIFIER.It has 3 switches on the front panel,off/on,high/low power-not connected and ssb/am not connected.On fm it is rated at 50 watts but 45 is probably realistic.It has a driver transistor driving an MRF247.The solder job is the worst i have ever seen on a circuit board.
Price from China approx $US78.
Having said all that it is a neat little unit and i have sorted out a circuit to make it run in linear mode using an LM317.If there is any interest i will post a pic with mods and circuit.If you are not experienced don't try to do it yourself - the transistor is not forgiving !!!!
You can see why i gave it a 2 rating.However it has potential and the price is right.

BH1OHK Rating: 4/5 Oct 28, 2013 00:16 Send this review to a friend
low price with good quality  Time owned: 0 to 3 months
This amp is great!! of course you can compare it with TE. But at least it worthy the price. There is no noise even if I turn the volume up.I received it a month ago and still use it.

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